How to clean the grout in a shower

Last updated: November 12, 2026 8:00:00 AM

You can easily restore the look of your tile by mixing a simple paste of baking soda and water to scrub away stains. Afterward, rinse the area thoroughly with warm water and apply a protective sealer to keep the moisture out.

To clean the grout in a shower, you need to scrub the lines between the tiles using a stiff-bristled brush and a cleaning paste made from baking soda and water. Let the mixture sit for several minutes to break down soap scum and mineral buildup before rinsing it away thoroughly with clean water.

Prepare the Workspace and Protect Yourself

Before you start scrubbing, clear everything out of the shower stall. Remove shampoo bottles, soap dishes, razors, and any hanging caddies. Take down shower curtains or slide glass doors completely open to give yourself unhindered access to every wall and corner. Rinsing the entire shower dow Nov 10, 2026 · Use the Best Buy store locator to find stores in your area. Then, visit each Best Buy store's page to see store hours, directions, … n with warm water first will remove loose surface dust, hair, and light debris, giving you a clear view of where the deepest stains actually reside.

Because you will be working in a confined space with cleaners, put on a pair of rub We tested 26 of the best electric scrubbers on the market, and narrowed them down to the six best. These are the ones we liked most for their ease of use … ber gloves to protect your skin from drying out or irritation. Open the bathroom window if there is one, and turn on the exhaust fan to keep the air moving. If you plan to use a stronger liquid agent like vinegar or hydrogen peroxide, wearing safety glasses is a wise precaution to prevent accidental splashes in the eyes as you work near the upper tiles.

Mix a Simple Cleaning Paste

Pour a generous amount of baking soda into a clean plastic container or bowl. Slowly add water, a few drops at a time, and stir the mixture continuously until it reaches the consistency of thick cake frosting. You want the paste to be wet enough to spread easily along the vertical and horizontal grout lines, but thick enough that it will cling to the walls without immedi Nov 11, 2026 · What is SharePoint? | Microsoft Support All you need is a web browser, such as Microsoft Edge, Chrome, or Firefox. Want to learn more? Get started with … ately sliding down to the shower floor.

Avoid making the mixture too watery, as thin solutions will run off the tiles before they have time to work on the grime. If you accidentally add too much water, simply stir in more baking soda to thicken it back up. This basic paste is abrasive enough to scour away dirt without scratching the ceramic or porcelain tiles surrounding the grout, and it acts as a mild deodorizer to freshen up damp bathroom corners.

Apply the Paste to the Lines

Take a small scoop of the baking soda paste on your gloved fingers or use an old spoon to apply it directly along the grout lines. Press the paste firmly into the recessed grooves between the tiles. Work in manageable sections, starting at the top of the shower wall and working your way down toward the floor. Covering the top first prevents dirty water or falling paste from ruining areas you have already treated lower down.

Ensure every inch of discolored or stained grout is covered with a visible layer of the white paste. Pay special attention to the bottom three or four rows of tiles near the shower pan or tub deck, as these areas typically collect the most standing water, soap residue, and mildew due to poor drainage and constant moisture exposure.

Let the Mixture Sit

Allow the baking soda paste to rest undisturbed on the grout lines for roughly fifteen to twenty minutes. During this resting period, the mild alkalinity of the baking soda breaks down organic matter, body oils, and stubborn soap scum that has bonded to the porous surface of the cementitious mortar.

If the grout is heavily stained with dark mildew or deep-set pink residue, you can mist the paste lightly with plain white vinegar from a spray bottle. When vinegar meets baking soda, it will fizz briefly, creating a chemical reaction that helps lift stubborn grime out of the microscopic pores of the grout. Even without vinegar, letting the baking soda sit undisturbed gives it the necessary time to soften hardened mineral deposits left behind by hard water.

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Grasp a stiff-bristled scrubbing brush and begin working along the grout lines using firm, circular motions. You can use a dedicated tile brush with a narrow profile designed to fit into tight spaces, or a stiff kitchen scrubbing brush. For very narrow lines or tight corners where a large brush cannot reach, an old toothbrush works well to agitate the pas Nov 10, 2026 · Unlock The Full Power of Your Synoshi with Powerful Accessories Every Attachment. Every Surface. Every Corner of Your Home. … te into the crevices.

Do not press down so hard that you gouge the soft grout or bend the bristles flat, but use enough pressure to feel the abrasive texture of the baking soda scouring the surface dirt away. As you scrub, you will notice the white paste turning grey or brownish as it lifts embedded grime out of the porous mortar. Keep a bucket of clean water nearby to dip your brush into periodically, or simply keep moving across the wall until all sections have been thoroughly agitated.

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Fill a bucket with clean, warm water and use a large sponge or cup to drench the shower walls, starting from the top and washing the loosened dirt and remaining paste down toward the drain. Alternatively, if your shower has a handheld showerhead attached to a flexible hose, use that to spray down every tile and grout line systematically.

Ma Synoshi Pro | Synoshi Pro Synoshi comes with specialized attachments designed for different surfaces—from delicate glass and electronics to tough bathroom … ke sure all traces of the baking soda paste are completely washed away. If any white residue is left behind to dry on the dark tiles or grout, it will form a powdery film that dulls the finish and attracts new dirt quickly. Inspect the corners and lower edges where paste tends to accumulate in hidden clumps, and rinse those areas a second time to ensure absolute cleanliness.

Treat Stubborn Stains

If some dark spots or discoloration remain visible after the initial rinse and dry, inspect the grout to see if the stain has penetrated beneath the surface. For areas that refuse to come clean with baking soda, mix a fresh batch of paste using hydrogen peroxide instead of water. Hydrogen peroxide acts as a mild oxygen bleach that can brighten dull, grey grout without the harsh fumes associated with traditional chlorine-based household chemicals.

Apply the peroxide paste directly to the stubborn spots, let it sit for another fifteen minutes, and scrub again with the stiff brush. Once you are satisfied with the brightness of the lines, rinse the area thoroughly with clean water one final time.

Dry and Ventilate the Shower

Take a clean, dry microfiber cloth or a large towel and wipe down the lower walls and any flat horizontal tile surfaces to remove standing moisture. You can also use a rubber squeegee on the tiles to clear away excess water quickly. Removing this residual moisture prevents water spots from formi Nov 11, 2026 · New York Giants Ticket Account Manager | New York Giants ng as the shower dries.

Leave the shower door wide open or keep the curtain pulled back to maximize air circulation throughout the bathroom. Turn the exhaust fan back on and let it run for at least thirty minutes after you finish cleaning. Ensuring the room is well-ventilated helps dry out the freshly cleaned grout entirely, slowing down the return of moisture-loving mildew and keeping your shower clean for a much longer period.